Dorman 674-230 Exhaust Manifold

Dorman 674-230 Exhaust Manifold for Ford Applications

Dorman 674-230 is a cast iron exhaust manifold engineered to match the fit and function of the original manifold on specified Ford vehicles. It includes the manifold gasket and downpipe hardware needed for a complete repair, making it a direct replacement choice for Mustang, Ranger, Aerostar, and select other Ford and Mercury models.

Key Features

• Cast iron construction for durable exhaust service
• Natural finish with round port shape
• Engineered to match original fit and function
• Includes gasket and downpipe hardware for repair completion
• Direct replacement for specified Ford Mustang, Ford Ranger, and Ford Aerostar applications
• Part number 674-230 for easy identification

Detailed Description

This exhaust manifold is built for vehicles that need a replacement manifold with OE-style fitment and function. Dorman 674-230 is designed for 1987-1993 Ford Mustang, 1983-1992 Ford Ranger, and 1986-1987 Ford Aerostar applications, along with additional 1983-1984 Ford and Mercury models listed in the fitment data. It also cross-references ATP 101037 for the same application. The cast iron body and round port design support a straightforward manifold replacement on the specified vehicles.

For buyers searching for a Ford Mustang exhaust manifold, Ford Ranger exhaust manifold, or Dorman 674-230 replacement manifold, this part provides a direct-fit solution for the listed vehicles. It is also listed for 1983-1984 Ford LTD wo/A.I.R., 1983-1984 Mercury Marquis wo/A.I.R., 1983 Ford Fairmont wo/A.I.R., 1983 Ford Mustang wo/A.I.R., 1983 Mercury Capri wo/A.I.R., and 1983 Mercury Zephyr wo/A.I.R.

What It Helps Fix

• Cracked or warped exhaust manifold housing
• Exhaust leaks at the manifold-to-cylinder-head sealing surface
• Broken or missing manifold gasket sealing
• Downpipe connection issues at the exhaust outlet
• Noise, odor, or performance loss caused by manifold failure

Installation Notes and Tips

Verify engine configuration and emissions equipment before ordering, especially for 1983 Ford and Mercury applications marked wo/A.I.R. Inspect the cylinder head flange, fasteners, and mating surfaces before installation. Replace damaged hardware and clean all sealing surfaces to help achieve a proper seal. Confirm the part number 674-230 and compare the removed manifold to the replacement before final assembly.

Quality Assurance

Dorman designs this manifold as a precision-engineered replacement for the original part on the specified vehicles. The package includes the manifold gasket and downpipe hardware listed in the product contents, supporting a complete repair on the confirmed Ford Mustang, Ford Ranger, and Ford Aerostar fitments.